This is a one piece unitized seal for any standard 5/8" water pump bearing assembly. 1960-83 Mopar passenger cars and Trucks 198ci, 225ci 6-Cyl engines. 1958-80 Mopar passenger cars and Trucks 273ci, 318ci, 340ci, 360ci, 361ci, 383ci, 413ci, 426ci 8-Cyl engines.